I found it when I READ the manual for your motherboard looking for a way to get the power supply voltages without using a Multimeter. Is the power supply cool to touch ? I'm interested if the power supply fan is working correctly. The other computer temps look normal from the speccy report. Ok, now I have UPDATED WINDOWS to 21H1 Build 19043.985

Also - installed all MB devices, checked Device Manager for missing drivers - all updated, no more visible missing.

Here's report:
http://speccy.piriform.com/results/wOroRkkKMKq0n8MabuSal1J

MiroThe report looks fine, What about the other information I have asked for please. I was searching in manual and found keystroke to make screenshot - it is F12.

So, screenshots are here.

Miro

So, again - I was waiting if freeze will appear again and after ~36 hours it was here.

What can do this?
Really see not any problem - can do it any application running in background? Or virus?

But STILL I don't know if is software able to freeze PC that is not possible to use reset button and only one way is to turn it off...

MiroHi

The power supply isn't the best with the specs of the computer see about getting a decent power supply. Also consider a new SSD drive for Windows and try again a clean reload.

The concern about the power supply is the 12.56 Volts this is on the high side.
Ok, last Q I think is only one and then we can close thread:

I had the same CONFIG except PCIe to PCI adapter add-on board and never freezed in previous Windows 10 Pro installation.
This is first time Windows 10 Enterprise installation which i bought in low-price.

Miro